this is the most common government communism. system in which the government owns and operates major businesses and controls other parts of the economy.
dictatorship. Acquire and maintain leadership in the state through fear and force.
oligarchy. a small, elite group rules the government.
democracy. ...
autocracy. ...
monarchy.
Because he was assassinated by Serbian rebels. Most of Europe was allied with someone, a tangle of alliances. Serbia was allied Russia. Austria-Hungary didn't like Serbia. Well when the Archduke decided to visit Sarajevo, he was assassinated by a Serbian assassin. Because of that, Austria-Hungary wanted to punish Serbia and declared war. Well Austria-Hungary was allied with Germany and Italy. And Serbia was allied with Russia. Well Russia attacked Austria-Hungary and Russia was allied with both Great Britain and France.... So it triggered a chain reaction like that.
In the 1900"s the European nations were feeling pretty good about their situations. They had colonies around the globe, industrialization was good, their music and art were the envy of the world and they could have their pick of whatever they wanted. So, when they said "The world's my oyster" it meant that they could have whatever they wanted at the time.